The Linux operating system was born on October 5, 1991 (the time when it was first officially announced to the public). Later, with the help of the Internet and the joint efforts of computer enthusiasts from all over the world, it became the most widely used UNIX-like operating system in the world today, and the number of users is still growing rapidly. The five important pillars of the birth and growth of LINUX: UNIX operating system--UNIX was born in Bell Laboratories in 1969. Linux is a clone system of UNIX. The importance of UNIX is needless to say. MINIX operating system--Minix operating system is also a clone system of UNIX. It was developed by the famous computer professor AST in 1987. Due to the emergence of the MINIX system and the provision of source code (only free for use in universities), a whirlwind of learning the UNIX system has swept universities around the world. Linux was first developed in 1991 with reference to the Minix system. GNU Project (project, engineering)--The development of the Linux operating system and most of the software used on Linux are basically from the GNU project. Linux is just a kernel of the operating system. Without the GNU software environment (such as bash shell), Linux will be difficult to operate. POSIX standard - This standard plays an important role in promoting the development of Linux operating system in the right direction. It is the beacon of Linux. INTERNET - Without the Internet and the selfless dedication of countless computer hackers all over the world, Linux can only develop to the level of 0.13 (0.95) at most. This article mainly traces the development process of Linux, its brewing process, and its initial development experience based on these five basic clues. First, the four basic elements (UNIX, MINIX, GNU and POSIX, the importance of Internet is obvious, so there is no need to elaborate on them) are introduced respectively. Then, according to the development process of Linus Toravlds, the founder of Linux, from being interested in computers and learning computer knowledge by himself, to starting to brew his own operating system, to the initial release of Linux kernel version 0.01, and how he finally launched a relatively complete version 1.0 with the help of hackers all over the world, step by step, this period of time, is a detailed introduction to the early development history of Linux. Of course, the current Linux kernel version has been developed to version 2.5.52. The kernel used in most Linux systems is version 2.4.20. (An odd number in the second digit indicates that it is a version under development and the stability of the system cannot be guaranteed.) The general development history of Linux has been introduced in many articles and books, so I will not repeat it here.
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